Deformation of the Shell of the Cylindrical Cryogenic Tank during its Filling

Finite element modeling of thin-walled shell composite structures

“…Methods of two-dimensional theories of plates and shells are often used to calculate engineering thin-walled structures [1][2][3][4][5][6][7][8][9][10][11][12][13][14], which allow to reduce the dimension of the problems from 3D to 2D problems, which, require significantly lower characteristics for the computer technology used. However, when solving problems in the theory of thin-walled plates and shells, additional difficulties arise, in particular, the problem of the accuracy of approximating the solution of the problem in terms of the thickness of the shell [5], the influence of the finite element type on the solution, as well as the problem of correct conjugation of the solution in the junction zone of various shell structural elements In this paper, a numerical algorithm for solving the problem of elasticity theory for shell composite structures, including complex structures, is proposed.…”

“…The right side in (2) takes the following form ( w such part of Y represent in the form 17), taking into account relations (14), is rewritten in the form:…”